Lumbar disc herniation is one of the more common diseases, mainly because of the lumbar intervertebral disc parts (nucleus pulposus, annulus fibrosus and cartilage plate), especially the nucleus pulposus, there are varying degrees of degenerative changes, in the role of external factors, the intervertebral disc’s annulus fibrosus is ruptured, and the nucleus pulposus protrudes from the rupture place (or out) in the posterior or vertebral canal, leading to the adjacent spinal nerve roots to suffer from irritation or compression, thus generating lumbar pain As a result, a series of clinical symptoms such as lumbar pain, numbness and pain in one or both lower limbs are produced. Lumbar intervertebral disc herniation to lumbar 4-5, lumbar 5-sacral 1 incidence rate is the highest, accounting for about 95%. Its incidence rate in western countries statistics 15.2%-30%, domestic statistics 18%. Lumbar spinal stenosis is due to hypertrophy and hyperplasia of ligamentum flavum, hyperplasia and cohesion of small joints, bulging and protruding intervertebral discs, and bony degeneration resulting in narrowing of the central canal of lumbar spine, neural root canal, or lateral crypts, causing compression of its contents of the cauda equina and the nerve roots, and the corresponding neurological dysfunction. Clinically, lumbar spinal stenosis is one of the most common diseases causing low back pain or low back pain. Its main clinical features are neurogenic intermittent claudication, as well as weakness and discomfort in the buttocks, thighs, and calves, which are aggravated after walking or backward stretching, and another clinical feature is abnormal sensation in the saddle area (perineum) and abnormal urinary and fecal function. In clinical work, it is often found that patients with lumbar disc herniation have lumbar spinal stenosis at the same time, with obvious clinical symptoms and difficult treatment. Since Mixter and Barr first confirmed and cured sciatica caused by compression of nerve roots by lumbar disc herniation through surgery in 1934, the surgical treatment of lumbar disc herniation has been widely applied in China, and Prof. Fang Xianzhi was the first one to carry out lumbar discectomy in 1946, which was then carried out in a more general way. In the 1960s, minimally invasive treatment was introduced, and papain and collagenase injections were used to dissolve the nucleus pulposus; in the 1970s, percutaneous forceps nucleus pulposus removal was developed in Japan, and in the 1980s, cut suction and laser ablation in the U.S. made the minimally invasive treatment get a greater development; and in the mid-1990s, a new treatment was carried out in Italy, which is: ozone (O2-O3 gas mixture) injection into the discs and the paraspinal space, and it has the advantages of simple operation, less traumatic operation and more convenient and less invasive treatment than the traditional method. A new treatment method was developed in Italy in the mid-1990s: ozone (O2～O3 gas mixture) intervertebral disc and paravertebral space injection, which has the advantages of easy operation, small trauma, safety, effectiveness, low cost and fast recovery than the traditional method. This technique is now generally recognized in Europe. Since 2000, Nanfang Hospital of Southern Medical University has been the first hospital in China to adopt percutaneous intravertebral disc ozone injection to treat lumbar disc herniation, and since then, minimally invasive treatments have been developed rapidly. In 1998, Dr. Anthony Yeung (Chairman of Minimally Invasive Surgery in the United States) pioneered the intervertebral foramenoscopy YESS technique, and in 2002, Prof. Hoogland (former Chairman of Minimally Invasive Surgery in Europe) proposed TSS on the basis of YESS technique. In 2002, Prof. Hoogland of Germany (former President of European Minimally Invasive Science) proposed THESSYS technology on the basis of YESS technology, which made the intervertebral foraminoscopy technology mature; the intervertebral foraminoscopy technology makes minimally invasive interventions step into the stage of “visualization”, which improves the accuracy and thoroughness of the treatment, and can avoid destroying the stability of the spinal column to the maximum extent, and reduces the chance of postoperative scarring and adhesion. Studies have shown that it is difficult to deal with the protruding nucleus pulposus and hyperplastic synchondrosis under the intervertebral foramen microscope, but once the operating points of this technique are mastered, the synchondrosis can be fully utilized to grind with a bone drill and the hyperplastic and cohesive synchondrosis can be further dealt with through a bone cutter and a bone chisel under the microscope, so as to achieve the goal of full decompression of the intervertebral foramen and spinal canal on the one side. After the operation, the patient’s symptoms improved significantly and the postoperative recovery period was short. This technique has been proven to be worth further observation and promotion. Intervertebral foramenoscopy technology has the following advantages: 1, minimally invasive, safe, short hospitalization period; 2, the indications are wider than the open surgery, which makes some patients who could not be treated originally treated; 3, intraoperative expansion of the intervertebral foramen to increase the volume of the spinal canal, which can improve the patient’s symptoms immediately, and improve the long-term effect; 4, the mirror to observe directly the compression situation of the nerve root, and can be loosened the adhesion of the nerve root, and decompression is complete; 5, under the mirror Real-time monitoring of bleeding and blood seepage, immediate treatment to avoid the formation of hematoma in the spinal canal.